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Proceedings Paper

Code-aided carrier synchronization based LDPC-Hadamard code
Author(s): Wanchun Gong; Zhiping Shi; Fajian Tang; Bing Yan
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Paper Abstract

The current papers have addressed the issue of synchronization in communication systems. In this paper, a method of code-aided carrier synchronization is proposed, which is based on LDPC-Hadamard code at extremely low signal-tonoise ratios (SNR) .This system consists of two parts: a low-rate LDPC-Hadamard code that is close to Shannon limit at extremely low SNR and an EM-based carrier synchronizer that makes use of the posterior probabilities of the data symbols provided by the iterative decoder. Performance of the proposed synchronizer has been illustrated by simulations in terms of the BER and the root-mean-square-error (RMSE). Simulation results show that the RMSE of the parameters performs very close to the modified Cramer-Rao bound.

Paper Details

Date Published: 24 August 2010
PDF: 7 pages
Proc. SPIE 7810, Satellite Data Compression, Communications, and Processing VI, 781009 (24 August 2010); doi: 10.1117/12.862063
Show Author Affiliations
Wanchun Gong, National Key Lab. of Science and Technology on Communications (China)
Zhiping Shi, National Key Lab. of Science and Technology on Communications (China)
Southeast Univ. (China)
Fajian Tang, National Key Lab. of Science and Technology on Communications (China)
Bing Yan, National Key Lab. of Science and Technology on Communications (China)


Published in SPIE Proceedings Vol. 7810:
Satellite Data Compression, Communications, and Processing VI
Bormin Huang; Antonio J. Plaza; Joan Serra-Sagristà; Chulhee Lee; Yunsong Li; Shen-En Qian, Editor(s)

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